Vuna – a world of ideas

We plan and build your water and sanitation system of the future today. From urban to alpine.

About us

Vuna develops decentralised wastewater systems and circular sanitation systems for remote holiday homes and tiny houses, plans the treatment of cottage wastewater and provides innovative solutions for urban areas. From total wastewater treatment to grey water reuse and rainwater harvesting, Vuna has already implemented a number of (waste)water systems. We also offer nutrient recycling: on the one hand with the recycled fertiliser Aurin, on the other with faecal composting. The latter uses worm composting to turn faeces into humus, which can be used as a nutrient-rich soil conditioner. The range is rounded off with drinking water filters and other drinking water treatment systems that guarantee drinking water quality.

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Take a look at our latest work

Maiensäss in Graubünden

Planning and construction supervision of the wastewater solution for the replacement construction of a remote holiday home at 1350 metres above sea level. Waterless urine-diverting toilet with drum filling of solids; planted carbon filter for grey water and urine.

Duration: 2021-23
Client: Private
Partner: Stefan Galliard GmbH
Location: Untervaz GR

Blüemlisal hut SAC

The in-built filter system provides a reliable supply of drinking water, making helicopter flights to supply water superfluous. Dry toilets have also been installed to save even more water.

Duration: from 2020
Client: SAC Sections
Partner: SAC Central Association, Sanitary Installers, Leyco

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La Bistoquette

In the urban settlement of la Bistoquette, the material flows are separated using separating toilets and the cycles for urine, solids, grey water and rainwater are closed. A pioneering project for the circular housing estates of the future.

Quantity: 500 L/d
Duration: 2021
Client: Coopérative Équilibre
Location: Plan-les-Ouates GE

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All our projects

Some key information about us:

  • Vuna was established in 2016 in Dübendorf (Switzerland) as a spin-off of EAWAG.
  • At present, Vuna has realised more than 150 different projects in 8 countries.
  • Vuna brings together specialists in the field of water treatment and recycling technologies.

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Clients

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Years in Business

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Projects

Some of our clients

Our own production

Aurin is the first urine fertiliser in the world with full approval from the swiss authorities. The best solution for your vegetables & flowers.

Officially approved as a fertilizer by the Federal Office for Agriculture (→Product register). After an intensive test phase starting in 2015, Aurin received definitive approval in 2018.

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Latest news

25.02.2025

Urine-based fertilisers in organic farming?

Listen to the entire podcast with Olivier Chaloche, Fabien Esculier and Florent Brun on France Culture.

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07.02.2025

Our congratulations!

We congratulate Helena Horber on completing her BSc at the ZHAW Institute of Environment and Natural Resources IUNR.

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04.11.2024

For World Toilet Day on 19.11.

Seminar ‘Closing water cycles - approaches for building practice’. Finissage ‘Flushlight’ & film screening ‘Holy Shit’ at the Stadtgärtnerei Zurich.

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Our Mission: Circular Sanitation Systems

Support us in our mission to enable circular sanitation in Switzerland and become a member of VaLoo, the network for circular sanitation systems in Switzerland, consisting of movers and shakers from research institutes, the private sector, as well as committed private individuals and soon you?

Visit VaLoo website

Our partners